Brief comms from Spanish speaking station about changing from clear to secure voice. He says “Copia seguro esta en claro cambia voz de seguro” or something along those lines. Definitely does not sound like pirates. I have noted this activity on several different freqs and suspect it may be some type of military users from Latin America. If anyone has any ideas as to the user please post in comments!

Welcome! Here you will find frequencies, reception logs and recordings for HF utility stations and UHF satcom. All of the logs and audio clips posted here are monitored from my location in Riverside County, California.